Solution for Error: Upload module - Failed

Upload module - Failed. There is already a file called /home/folder/www/modules/blah_blah_blah.php - Are you trying to install the same CMT twice?

November 30th Information and Tutorials \ Joomla CMS This is an error I have run into several times with Joomla 1.0.x. You go to install a module, apparently one you've already installed previously. I've been frustrated with this before, and I know many others have as well. It's a very simple problem (which highlights a bug in Joomla's module handling, but will probably never be fixed in the 1.0.x version of the CMS) and luckily it has a simple solution.

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The Solution

Delete the files on your server that were previously installed by the module you are trying to install. FTP into your web site and go to the "modules" directory, and delete the file mentioned in the error message and any other files (xml, php, images) and folders that were installed by the module. Then try installing the module again, you shouldn't have any more errors.

{cbauthor}The problem was that you deleted the last instance of a Joomla module from the Site Modules page instead of the Module Installer page. This reveals a bug in the Joomla 1.0.x code - Deleting a module from the Site Modules page will completely remove the module from the system, but it doesn't delete the physical files on your server. It's not a life or death issue, you just need to be careful not to delete any modules from the Site Modules page (unless you're deleting a copy of a module and it's not the last instance of its kind).